Chrome-Nickel content refers to the percentage of chromium and nickel present in stainless steel. The amount of chromium in stainless steel is important because it protects the iron from rusting, a property known as passivation. The higher the chromium content, the more resistant the steel is to corrosion. Nickel, on the other hand, is added to stainless steel to provide a silver-like shine along with some additional rust resistance. The different grades of stainless steel have varying amounts of nickel and chrome, which affect the steel's strength and anti-corrosive properties. For example, 18/8 stainless steel contains 18% chrome and 8% nickel.